The unit started look worn immediately.  I requested assistance on how to replace the low-high settings that are around the knobs,  no one could help me.  The grates already look worn. It heats great, but really not the best stovetop we have had.  We have owned many homes and expected a higher quality of stove top.  It looks 10 years old.  We don’t even use it that often. Each  time you clean it with a soft/wet towel,  the black lettering comes off.